Pump



.pri 22 f 1924 1,491,057

B. F. MYERS PUMP Filed April so. 192s INVENTOR F. Myey) A Blf/lm g,

A ATTORNEYS Y 10 and into the body 5.

illustrates that the' inlet branch Y Patented Apr. 22, 1924..

U TE@ STATES wins? FEE.

.lpplicition filed April 30, 1923. Serial No. 685,767.

T o all whomit` ma' conrn.:

Be it known that l, BENJAMIN F. MYERS, a citizen of the Unlted States, and resident of Marshall, in the county of Harrison and State of Texas, have invented certain new and luseful Improvements in Pumps, of which the following' is a. specification. A p' This invention relates to air lift pumps especially adapted for pumping waterl from great depths. i

An important object of this invention is to provide an air pump consisting of av series of spacedv nozzles by means of which the air is employed expansivelv for setting the water in motion and elevating the same` A further object is to provide an air lift pump which will operate witha high degree of eiliciency and which requires a minimum amountof air at a low elevate the' water in the desire quantity.y A further objectis to provide an air lift which is of highly simplified construction, free of moving parts and which is comparaf tively cheap to manufacture.

Other objects and advantages will be apparent during the course of the following escription. l

In the accompanying drawing forming a part of this application and in which-like numerals are employed to designate like parts throughout-fthe same, i

Figure 1 is a. vertical sectional view through the improved air lift device.

Figure 2 is a group perspective of the several nozzles embodied in the invention and which are employedlo use the air/expansively.

In the drawing wherein for the purpose of illustration is shown a. preferred embodiment of the inventlonthe numeral 5 generally designates the body of the iinproved air lift pump. the Said body consisting of upper and low'er sections 6 and T threadedly connected as indicated at 8.

The improved air lift device and more specifically the lower section 7 is provided with a lateral ybranch 10 with which an air inlet pipe 11 has connection and it is believed to be obvious that the air supply pipe 11 extends from a pump at the surface-so that the air forced through the pipe under pressure'will pass through the branch Figure 1 -charged into resure to 10 has connection witha centrally arran ed longitudinally extending branch 141:0 which an outlet member or nozzle 16 is connected.

The air which passes under pressure through the uniform the enlarged bore 2O at the rea-r end of an intermediate nozzle 22. More specifically the numeral 20 indicates the enlargement inthe rear portion of the bore of the bushing 22 and the upper portion of the out-let member 16 is freely received in the enlargement 20.

As the upper portion of the nozzle 16 is freely received in vthe enlarged bore 20 a quantity of wats/1` may ass between the nozzle and the wall o t e enlarged por5 tion 22 and mingle with the air, thereby setting up motion in the entire body of water.

The water lwhich issues from the nozzle 26 of the intermediate nozzle 22 and it will be seen that the bore 26 is gradually and uniformly enlarged in the direction of travel of the air and water sothat the air may be used expansively.

The air and water which issues from the intermediate nozzle 22 is discharged into the bore 30 of a second intermediate nozzle 32 and the bore 30 of the nozzle 32 is also gradually and uniformly enlarged so that the air may further expand. The air which issues from the nozzle 22 acts upon the water dra-wn through the radial openings 3T and when the water is sucked in through the openings 37 the movement of the water is, of course. further accelerated.

bore of t/he nozzle 16 is disl enters the longitudinally'extending bore The major quantity of water is elevated f by the nally expanding air issuing from the upper end of the nozzle 32 at which point the air acts upon the water entering by way of the oppositely located openings 40.

Attention is especially directed ,to the fact that the opposite sides of the nozzle 32 are formed with elongated recesses 43 which communicate with the openings 40 and thereby form what might be said to be feed` ers or passagesy for the'water entering the openings. 40. In this manner the movement of the water through the openings 4:2 is greatly accelerated. Also the lower walls yof the openings 40 are beveled so that the water may ass through the openingswith a minimum o? resistance.V Figure 2 illustrates that the openings 37 are extended in from lio - and has connection with the lower portion of the discharge'nozzle 48. The nozzle 48 is provided with an annular flange 49 which is seated upon an annular shoulder 50 in the lsecurely in Lupper-portion-of the body 5. A bushing or ring nut 51y may be employed for securing the upper nozzle 48 and associated elements osition.

Figure 1 c early illustrates that the inlet and outlet ends of the discharge nozzle 46 areA flared or bell-shaped so as to-,allow for the movement of the air and water at a maxinum speed. i

`Withv reference to the foregoing description'it will be seen that the water under pressure will-pass through the nozzle 16 and pick up a small quantit of water coming in through the enlarge portion of the bore of the intermediatejnozzle /22'and a further quantity of water will be picked `up as the -air issues from the enlarged upper end of saidaai'r' 'the/intermediate nozzle 26.

- to the surface.

auv

l eiliciency and The principal expansion of the air takes; place in the intermediate nozzles 22 andfig and the majorl quantity of water is taken 'in by way Yof the openings 40-40'and elevated The water is started in its travel and is elevated with a high degree of with a minimum of air pressure. Furthermore the water will not be rendered mudd as the result of the action of`the `air as the air merely creates a suc- No stirring action takes place in the water and the water ,is not agitated.

Having thus describedthe invention, what Iclaimis- ,-1 1. An air lift pump comprising a nozzle having external elongated recesses constiing spaced from said outlet tutin feeders and openin s to receive the liqui from said elongate recesses.

2. A water lift-pump comprising a tubular body havin a longitudinally extending air-outletemem er, a nozzle having aplongitudinally extending bore-enlarged at its rear` end to freely receive said outlet member, the wall of the enlarged portion of said bore bemember whereby water may enter and mingle with the air, the bore of 4said nozzle bein uniformly enlarged in the direction of trave of the air and water x whereby the air vmay be employed expansively, and a second nozzle supporting the firstnamed nozzle and having water inlet openings adjacent the outlet end of said first named nozzle, said`` second named nozzle being provided withmajor water inlet openings and with longitudinal depressions to feed substantial quantities of -water to said v major inlet openings.

. v 3. A water lift pump comprising a tubu-l manos? lar body having a longitudinally extending air outlet member, a nozzle having a longitudinally extending fbore enlarged at its rear end. to freely receive said outlet member, the wall of the enlarged portion of said bore being spaced from said outlet member whereby water may enter and mingle with the air,'the bore of vsaid nozzle being uniformly enlarged in the direction of travel of the airand water whereby the air may be employed expansively, a second nozzle supporting the first named nozzle and having waterlinlet openings adjacentthe outlet end of said first named nozzle, said second named nozzle being provided with majorwater inlet openings and with means to feed substantial quantities of water to said major inlet openings, and a final discharge nozzle connected to the body and silipporting said first and second named nozz es.

' 4. A water lift device comprising a body having air suppl means extending longitudinally thereo a nozzle freely receiving supply means, 'between the nozzle and the air supply means '.to allow a small quantity of water to enter f the nozzle, saidl nozzle being gradually and there being means 'i uniformly enlarged interiorly to allow of p the expansion of the air, a second nozzle having connection with the lirst named nozzle and being internally enlarged toward its outlet end, the upper portion of the second named nozzle being provided with major water' inlet openings, said second named nozzle being provided with 1ony.gitudinally extending recessed portions constituting feeders for said major water inlet openings.

/ 5. A device of the character specified coineprising a nozzle having water inlet openings and elongated longitudinal external depressions constituting feeders by means of which water is supplied to said openings.

6. A device of the character specified comprising a nozzle having water inlet o nings andy elongated longitudinally exten ing depressions forming feeders by means of which water is supplied to said openings, the end walls of said openings being beveled for the free passage 'of water, and means whereby to supply air under pressure to said nozzle.

' 7. .A device of the character specified, coinprising a body, a nozzle arranged therein and having a bore gradually enlarged toward its outlet end, the nozzle being provided with major liquid inlet openings and with longitudinal recesses constituting feeders for the free passage of supporting said first-named nozzleand having its ends flared, and an air supply nozzle connected to said'firstnamed nozzle and provided with a gradually enlarged bore.-

8.\ A device of the v character specified,

liquid, a second nozzle `comprising a body, a nozzle arranged there I' in and havinge bore toward its outlet end, t vided with ma with longitudinally ext tions constituting feeders for the free pasv sage 'of Water, a secon said first named nozzle jor water inlet openings and i monos? gradually enlarged he nozzle being prorst named n ending recessed pord nozzle sup orting and having lts ends dared, an air su gradually enlarged bo vided With a gradual ceiving said nozzles.

v BENJAMIN F. MYERS.

ozzle a pply nozzle connected to said nd provided with a the body being pro- 10 ly restricted bore re- 

